Instagram Scraper — Built with Puppeteer + Stealth + Proxy Rotation

I’ve been hacking on an Instagram Scraper that can fetch profile analytics and post details without requiring login.

What it does

• Scrapes public profile data: username, name, profile picture, followers, following, post count.

• Collects post details: captions, thumbnails, full-size images, likes, comments, timestamps.

• Computes engagement metrics (avg likes/comments, engagement rate).

• Supports configurable sample size (default: 5 posts, but adjustable via API query).

Tech stack

• Node.js + Express backend API

• Puppeteer-core with puppeteer-extra + stealth plugin to evade detection

• Proxy rotation (via puppeteer-page-proxy) to avoid IP bans & distribute requests

• Concurrency optimizations → profile page is fetched once, then posts are scraped in parallel

• Optional CORS-enabled API so it can integrate with a frontend dashboard